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Add vpks{h, w}{s, u}s, vpku{h, w}us, and vpku{h, w}um instructions.

Browse source 
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6182 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2009-01-04 22:12:09 +00:00
parent 00d3b8f59b
commit 5335a145a1
3 changed files with 51 additions and 0 deletions
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35
target-ppc/op_helper.c
View file

@ -2190,6 +2190,41 @@ void helper_vperm (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
*r = result;
}
#if defined(WORDS_BIGENDIAN)
#define PKBIG 1
#else
#define PKBIG 0
#endif
#define VPK(suffix, from, to, cvt, dosat) \
void helper_vpk##suffix (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \
{ \
int i; \
int sat = 0; \
ppc_avr_t result; \
ppc_avr_t *a0 = PKBIG ? a : b; \
ppc_avr_t *a1 = PKBIG ? b : a; \
VECTOR_FOR_INORDER_I (i, from) { \
result.to[i] = cvt(a0->from[i], &sat); \
result.to[i+ARRAY_SIZE(r->from)] = cvt(a1->from[i], &sat); \
} \
*r = result; \
if (dosat && sat) { \
env->vscr |= (1 << VSCR_SAT); \
} \
}
#define I(x, y) (x)
VPK(shss, s16, s8, cvtshsb, 1)
VPK(shus, s16, u8, cvtshub, 1)
VPK(swss, s32, s16, cvtswsh, 1)
VPK(swus, s32, u16, cvtswuh, 1)
VPK(uhus, u16, u8, cvtuhub, 1)
VPK(uwus, u32, u16, cvtuwuh, 1)
VPK(uhum, u16, u8, I, 0)
VPK(uwum, u32, u16, I, 0)
#undef I
#undef VPK
#undef PKBIG
#define VROTATE(suffix, element) \
void helper_vrl##suffix (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \
{ \